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Sign PDF Online (No Watermark)
Securely add electronic signatures to any PDF document in seconds. No account required, no watermarks, and 100% private.
100% Private & Secure
Files never touch our servers
AES-256 Encryption
Bank-level security standard
Legally Binding
ESIGN & eIDAS Compliant
Building a SaaS?
Automate ESIGN-compliant document signing in your own app with the PDF Pro B2B API.
How to sign pdf online (no watermark)?
Upload your document
Click to pick the single PDF file you need signed by you or others.
Draw or Type Signature
Use our flexible signature tool to draw, type, or apply your digital mark.
Download Sign-Copy
Get your e-signed copy instantly. Legally-compliant and securely handled.
View Your Processed Files
- Local history stored in your browser
- Quick access to recent downloads
- Files auto-deleted from our cloud
AES-256 Secured
ESIGN Compliant
How to Electronically Sign a PDF File Online
Printing a document, signing it with a pen, scanning it back into your computer, and emailing it is a severely outdated workflow. With PDF Pro's electronic signature tool, you can digitally sign your contracts, agreements, and forms in seconds without wasting paper or time. Our streamlined interface lets you draw, type, or upload an image of your signature and place it exactly where it needs to go on the document.
Are Electronic Signatures Legally Binding?
Yes! In the United States, electronic signatures are governed by the ESIGN Act (2000) and the UETA. To comply with these strict legal frameworks, PDF Pro automatically generates a cryptographic Audit Trail & Certificate of Completion that is appended to the final page of your signed document. This audit log mathematically proves the exact state of the document using a SHA-256 hash, an immutable UTC timestamp, and your device fingerprint.
What Can I Use This For?
Our built-in cryptographic audit trail makes PDF Pro legally sufficient for about 95% of standard business transactions. It is perfectly designed for Non-Disclosure Agreements (NDAs), freelance contracts, B2B sales agreements, purchase orders, and internal HR documents.
Note: Highly regulated documents (such as real estate deeds, court orders, or wills) often require a Public Key Infrastructure (PKI) digital certificate from an Adobe Approved Trust List (AATL) provider. Please consult legal counsel before using e-signatures for notarized documents.
How Do I Create My Signature?
Our intuitive signing suite gives you complete flexibility. If you are using a smartphone or tablet, simply use your finger or stylus to trace your realistic signature across the screen. If you're using a desktop computer without a touchscreen, you can cleanly draw with your mouse, or type your name out using one of our certified cursive fonts to instantly generate a professional-looking digital mark.
Military-Grade Storage Security
When dealing with legal contracts and NDAs, security is your primary concern. We utilize top-tier encryption across our entire architecture. Before your document is even uploaded, the connection is fortified with AES-256 bit encryption. Once you've completed the signing process, the final signed PDF requires authentication to access, guaranteeing that no unauthorized users can download your private agreements.
Sign Anywhere, Anytime
Since our tool operates completely within your web browser, you don't need to juggle app installations or create dedicated workstations. Access PDF Pro from the office, from your couch, or while waiting in line at the coffee shop to keep your business workflows moving smoothly without interruption.
Trusted by 10,000+ Freelancers & Businesses
"I used to pay $15/month to Adobe just to sign freelance NDAs. PDF Pro's e-sign tool is completely free, doesn't require me to make an account, and the cryptographic audit trail makes me feel incredibly secure."
"The zero-upload local browser signing is a game changer for my HR department. We process highly confidential employment agreements and knowing the file never touches a cloud server is amazing."
Frequently Asked Questions
Are electronic signatures legally binding in 2026?
Yes. Electronic signatures are legally recognized under standard business laws globally, including the ESIGN Act in the US and eIDAS in Europe. Documents signed on PDF Pro carry full legal weight for standard agreements.
How do I type my signature on a PDF?
Simply upload your document, select the signature tool, and choose the 'Type' option. You can type your name and we will automatically format it using a professional cursive font to create a digital signature.
Can anyone else see the document I am signing?
No. Your documents are completely secure. PDF Pro relies on encrypted end-to-end communication, meaning neither ISPs nor third parties can view your contract. After signing, it's safely stored to your private account.
Can I e-sign a PDF on my mobile phone?
Absolutely. PDF Pro works entirely in your browser, so it is fully compatible with Android and iOS devices. Simply open the page on your smartphone, upload your PDF, and draw your signature with your finger directly on the screen — no app download required.
Is an e-signature on PDF Pro valid under India's IT Act 2000?
Yes. Under Section 5 of India's Information Technology Act, 2000, electronic signatures are a legally recognized method of authentication for most documents. PDF Pro's electronic signature meets the criteria for a valid e-signature in India for standard business, commercial, and personal agreements.
Can I add multiple signatures to a single PDF?
Yes. PDF Pro supports placing multiple signature fields anywhere on your document. You can sign once and position the same signature repeatedly, or apply different signature styles to different fields — ideal for agreements requiring initials and a full signature.
Is my signature image stored or shared after signing?
No. Your drawn or typed signature is processed entirely for the purpose of embedding it into the signed PDF. We do not retain, store, or share your signature data on our servers. Once the signed document is generated and downloaded, all associated data is permanently purged within two hours.
PDF Pro tools are 100% cloud-based and secure. Your documents are processed with end-to-end encryption.